JP2007522047A - Dispensing nozzle and cap - Google Patents

Abstract

A dispensing nozzle for a container with a long tapered nozzle body has a narrow tapered dispensing end and a wider base end. A passage for fluid runs from the base end to the dispensing end and through an outlet. The dispensing nozzle has a removable cap that fits over the dispensing nozzle when in the closed position which closes the dispensing nozzle's outlet with a penetrating plug located on the interior of the cap. The cap has a narrow closed end that has the penetrating plug on its interior side and the cap has a wider open end. The cap fits onto the nozzle in a tight fit when closed. The invention contemplates that the fluid in the container is strong glue, so that hardened glue makes removing the cap difficult. To solve this problem, the nozzle and the cap have two distinct sets of ramps that provide the initial separating force to twist the cap with respect to the nozzle in order to remove the cap easily and allow dispensation.

Description

  The present invention relates to a dispensing nozzle and a cap. The invention also relates to an assembly comprising the nozzle or cap and a container fitted with the nozzle and / or cap.

  Many types of nozzles have been provided for removing a removable product. Caps that fit over nozzles to seal the nozzles after use and for storage are also well known. The nozzle / cap can be used for many end use applications.

  One problem that arises in some cases is that the cap comes off the nozzle. This occurs when a nozzle is used to remove the product and the product remains outside the nozzle when the removal operation is complete. When the cap is returned over the nozzle, the cap is often contaminated with the remaining product. This in turn may make it difficult to subsequently remove the cap from the nozzle. The product may otherwise prevent removal of the cap from the nozzle, for example by gluing the cap to the nozzle and / or fouling threads, for example.

  It is not desirable that it is difficult to remove the cap from its position on the nozzle. This is because the user of the product being removed may notice that if he tries to remove the cap from the nozzle, the product is too resistant to do so and can no longer be done manually. If any tool is used to help a user try to remove a cap that is difficult to remove, the force applied to remove the cap will damage the nozzle and / or cap, and they are no longer needed. It may become impossible to fit together. In situations where mechanical forces are used, it is very common to experience some form of material failure, such as shearing of the nozzle, breakage of the cap, or rupture of the container containing the product to be removed.

  Attempts have been made to provide nozzle / cap arrangements that minimize the possibility of material failure and allow the user to remove the cap with minimal force from where it fits on the nozzle.

  One known cap / nozzle assembly comprises a cap of the type having an elongated nozzle body having a base and a second dispensing end. A conduit defined in the nozzle body is provided to deliver the product from the base to the dispensing end. The nozzle has three parts with different diameters. A portion of the nozzle is provided with an external thread, which cooperates with an internal reverse thread on the outer surface of the fitting cap.

  The snap-in cap is of the type having a housing that defines a first closed end and a second open end with a rim around the open end. The cap is also provided with a thread, which cooperates with a reverse thread on the outer surface of the nozzle.

  Both parts are typically made from a very strong plastic material so that they can withstand the considerable forces that can be applied to remove the cap from the position where it was fitted over the nozzle. The threads are arranged at a relatively small pitch so that the relative rotation of the cap and nozzle is relatively easy for the user. The threads are located at a considerable distance from the dispensing end of the nozzle so that the risk of contamination with the product is minimized. However, even with such a configuration, the two parts adhere and become difficult to remove. If a relatively large mechanical force is applied despite the use of a stronger material, material destruction as described above can occur.

  In addition, reflected in thicker walls etc., it can also be used to make nozzle / cap arrangements if there is a need for a ruggedly constructed component achieved by utilizing a larger amount of material. The cost of the material being made is great. In some earlier constructions, the pins provided in the caps and arranged to pierce the nozzle conduits were necessarily metal constructions. Another problem experienced with some prior art arrangements is that the cap expands due to deformation of the cap due to the force applied to remove the cap from the nozzle. In such a case, the diameter of the cap distorts the spread from the nozzle.

  Therefore, by providing a nozzle and cap device that addresses the problem of difficult to open the cap if the device is contaminated with product, and by reducing the amount of material used, in particular, It is also desirable to reduce the cost of materials used by reducing assembly costs during manufacturing.

According to the present invention,
(I) an elongated nozzle body having a base portion and a dispensing end;
(Ii) an internal conduit in the nozzle body for delivering product from the base portion to the dispensing end;
(Iii) an engagement structure on the nozzle for interengaging with a cooperating engagement structure on the cap to hold the cap in a position to fit over the nozzle;
(Iv) is located on the nozzle body, receives an action from a cooperating part on the cap, provides a sufficient relative separating force between the cap and the nozzle body, Dispensing nozzles are provided that comprise a mating structure and an external ramp that can separate the nozzles from their interengaged positions.

  The advantage provided by the arrangement of the present invention is that the separation force provided is large relative to the manual acting force required. This configuration can also reduce the material used in the manufacture of the nozzle, thus reducing costs. Furthermore, the configuration of the present invention eliminates the need for conventional threads, particularly low pitch threads. Removing conventional threads removes one potential cause of the problem of nozzles and caps sticking together by fouling with the product being removed. The ramps and cooperating parts can slide sideways relative to each other to provide the desired motion. Thus, the ramp / cooperating portion acts as a kind of skid pad.

  The nozzle of the present invention can be integrally formed with a container into which a removable product can be placed. Alternatively, an engagement structure such as a snap fit or thread to engage with a corresponding engagement structure on the container can be provided.

  The nozzle of the present invention can be used to remove industrial or consumer products. In particular, the nozzle of the present invention is particularly suitable for removing curable products such as adhesives.

  The separation force between the cooperating surface and the external ramp is preferably provided by the action of the relative rotation of the cap and nozzle in at least one direction. This can be achieved by making the inclined surface oblique to the direction of rotation of the cap. More desirably, the separating force is provided by the relative rotation of the cap and nozzle in two opposite directions. This can be achieved by two opposing (and facing) inclined surfaces that are oblique to the direction of rotation of the cap.

  However, if desired, the ramp may have a stop at one end thereof, for example for better visual display to the product user, which abuts when the cap engages the nozzle. This provides a clear cap stop when the cap is attached to the nozzle. Spiral thread type configurations generally have such a clear stop because the interengagement is ensured to the extent determined by the relative rotational force applied around the thread. Absent. If there is a stop on one or opposite inclined surfaces, the user better recognizes the relative rotational direction (eg left hand direction) required to separate the cap and nozzle.

  Desirably, the relative rotation required to effect the separation is less than about 90 °, particularly less than about 80 °, for example less than about 60 °. In one arrangement, the relative angle of rotation is less than about 50 °, such as about 45 °. In other words, in contrast to the thread configuration, separating the nozzle from the cap (completely separating so that it no longer interengages) is (almost) one 360 ° relative rotation or pivoting. Can be achieved in less than. This component is disengaged in less than one relative rotation. Generally, the separation distance achieved is on the order of at least about 0.4 mm, such as at least about 0.5 mm, especially at least about 0.75 mm, such as at least about 1 mm. This separation is measured from the fully engaged position. The cap is still (partially) fitted on the nozzle, but may be disengaged from there.

  In one arrangement, the inclined surface is provided by an inclined surface on the outer shoulder defined on the nozzle body. The outer shoulder can be defined on a bridging portion on the nozzle that bridges the two portions of the nozzle having different diameters. The bridging portion can be formed in particular by reducing the nozzle diameter (measured across the outer surface). In general, such a decrease in nozzle diameter is substantially consistent with a decrease in conduit diameter on the nozzle. This means that the cap can be configured such that when the cap is fitted over the nozzle, the base of the cap contacts the shoulder. In such a case, the contact portion of the cap typically forms a cooperating portion on the cap.

  The shoulder generally provides a circumferentially disposed surface around at least a portion of the longitudinal axis of the nozzle body. In general, the orientation of the surface is substantially transverse to the longitudinal axis of the nozzle body.

  In general, the inclined surface has an inclined surface having a first (lower) portion and a second (upper) portion, the first and second portions being inclined from the first portion to the second portion. Is arranged to provide the desired lift. This is also true when a second inclined surface is provided. In the latter case, the first parts of the respective inclined surfaces can be arranged close to each other, while the second part is generally further (with both first parts arranged therebetween) Arranged at intervals. The inclined surface is preferably disposed around the lateral axis of the nozzle body. For example, the inclined surface may be curved (symmetrical or asymmetrical) around the lateral axis of the nozzle body. In general, each inclined surface may be curved around a transverse axis so as to have a first (lower) portion and a second (upper) portion. The first portion is generally farther away from the dispensing end of the nozzle than the second end. Two opposing inclined surfaces can be arranged to contact at their lower ends. The contacting inclined surface can generally exhibit a concave shape with usually at least one curved surface. If a stop is provided, it can be placed at one upper end of the opposing inclined surface.

  Thus, the inclined surface can be provided by a dish-type surface, such as a dished depression or groove, which can be formed, for example, on the shoulder. When using a dish-like surface, there is typically a (central) low part and two high parts, and moving along the surface from one low surface to one (one) provides a tilting motion. . Thus, in general, ascending or tilting movements are experienced by moving in either of two opposite directions.

  In general, it is desirable for the inclined surface or each inclined surface to be curved around the longitudinal axis so as to follow the path of movement of the cooperating portion on the cap of the nozzle. This allows cooperating parts on the cap to ride on the ramp by relative rotation, which can be continued until separation of the cap and nozzle is achieved.

  In general, the inclined surface can be provided to extend less than about 45 ° around the nozzle body (circumferentially). When the separation force is achieved by relative rotation in either direction, the movement along the inclined surface from the lower part to the higher part of the dished surface is generally achieved by movement about half of the dished surface. Is achieved.

  It is desirable that the inclined surface is provided on a ridge portion arranged in a circumferential direction extending around the wall portion at a distance from the wall portion of the nozzle portion. This can be easily accomplished, for example, by providing a sufficiently high ridge portion on the shoulder so that the upper portion of the ridge extends around the wall portion of the reduced diameter portion of the nozzle body. The ridge may extend completely or partially around the nozzle body. For example, the ridge may be divided only on one side, on the opposite side, and / or divided. This arrangement is useful when an inclined surface is provided in the building.

  The cooperating part of the cap can be arranged to extend radially outward to act on the ramp, while the mouth of the cap is at least partially between the ridge and the nozzle body in the fitted position. More preferably, it is attached to an annular seat. This makes the cap fit the nozzle very closely and is also attractive from an aesthetic point of view. This is useful for a simple but desirable structure. One particularly desirable structure is one in which the cooperating portion of the cap extends radially outward and protrudes beyond the ramp at the position where the cap and nozzle are interengaged.

  A further important aspect of the present invention is that the ramps and cooperating parts are arranged so that they are clearly visible to the user in both the disengaged position and the interengaged position. The inclined surfaces and the side surfaces where the cooperating parts engage provide a very strong visual indication to the user for the correct alignment of the cap and nozzle to interengage the two parts.

  In one simple configuration, the cap and nozzle are interengaged in a push-fit manner, such as a snap-fit configuration. In this arrangement, the engagement structure on the nozzle is arranged to snap-engage with the cap. In this arrangement, the cap is snapped on and twisted off. The snap-fit engagement of the cap and nozzle is very beneficial from a cap and nozzle assembly point of view during the molding or filling process. The cap and nozzle can be easily assembled with a simple press fit, eliminating the need to screw into the helical thread.

  If a snap-fit configuration is used, it is desirable to provide an external interlocking structure for the nozzle and an internal interlocking structure for the cap. Interengagement can be achieved by snapping the inner interengagement structure onto the outer interengagement structure. It is desirable to provide two (diametrically) opposing external interengaging structures and two (diametrically) opposing internal interengaging structures. When relative rotation is applied to disengage the cap / nozzle assembly, one or more ramps can provide sufficient lift to the cap and unsnap the snap-fit structure. In this way, for example, the separating force generated by the inclined surface pushes (returns) the inner interengaging structure onto the outer interengaging structure, and removes the cap from the nozzle.

  In general, the snap-in configuration is useful in a manufacturing environment. Having a snap-on and twist-off configuration is efficient and beneficial, but can create practical challenges for inexperienced users accustomed to screw-on and unscrew caps. For such a person, it is advantageous to include a twist-and-fit operation. In particular, according to the present invention, in addition or alternatively, the interengaging structures can be joined together by sliding one of them into a position below the other by a twisting action on the cap, thereby engaging one with the other. Can be brought into the engaged position. In order to maintain both aspects of functionality, it is desirable to provide a twist-on type operation in addition to a snap-on operation. In such an arrangement, the cap can be pushed in or twisted, and can be pulled out or twisted off.

  This alternative or additional functionality can be achieved by forming the contour of the interengaging structure to have a contour that matches the ramp. The interengaging structure is contoured to engage to achieve the same mating engagement as pushing one structure into the other, such as a push snap fit engagement. In this method, the cap rotates and overlaps within the inclined surface while one interengaging structure engages the other at the same time. The cap is then held in place and can be snapped off or twisted off at the user's choice.

  When providing the mutual engagement (snap fitting) structure, it is desirable to arrange the mutual engagement structure on the nozzle on the nozzle body in the vicinity of the base portion. In one arrangement, when the first and second inclined surfaces are provided at intervals along the nozzle body (in the longitudinal direction), the snap-fit structure on the nozzle body has the first inclined surface and the first inclined surface Between two inclined surfaces, it arrange | positions on a nozzle main body.

  Generally, the interengaging structure takes the form of one or more interengaging ribs. In particular, one or more ribs are arranged laterally on the nozzle and / or cap body. In this arrangement, at least a portion of the ribs extend substantially perpendicular to the longitudinal axis of the cap and / or nozzle. The rib generally extends only to a portion of the circumference of the nozzle, eg, extends less than (substantially) half of the circumferential distance around the nozzle.

  The (tail) portion of the rib is oblique to the longitudinal axis (eg, a relatively large angle, such as 10 ° to 70 °, 20 ° to 60 °, preferably 30 ° to 50 °, about 45 °, etc. ) May extend. It is desirable that the inclined portion be contoured to coincide with the contour of the inclined surface (and generally rotate upward at a relatively large angle as described above). This is a particularly desirable form that the ribs on the nozzle take to follow the contour of any inclined surface on the nozzle. The ribs on the cap may be substantially straight, but it is desirable to set a small tilt angle (eg, less than about 15 °, less than about 10 °, etc.) so that the cap can engage the nozzle more smoothly. . When the cap and the nozzle are provided with the respective ribs, it is desirable that each of the cap and the nozzle extends only to a part of the periphery of the cap or the nozzle. This is consistent with allowing the cap to be removed in less than one revolution, as described elsewhere in this application.

  The general structure of the nozzle of the invention described above is sufficient to allow the combined cap and nozzle to be opened easily, even in the case of a nozzle / cap that is considerably soiled by the product to be removed. . The separating force is best achieved by twisting off the cap that achieves the tilting action.

  However, the inventors have found that the cap / nozzle separation aspect can be further improved by using some of the following additional features.

  In particular, it is desirable to distribute the separating force between the cap and the nozzle as described below. In particular, this can be done by providing other inclined surfaces and cooperating parts to produce the separating action at different positions in the circumferential direction around the nozzle and at different positions along the nozzle. This distributes the force to various spaced locations, which improves the removal characteristics of the cap.

  In one arrangement, at least one further external ramp is provided on the nozzle body, on which a further cooperating part on the cap can act. In one arrangement, it is desirable to provide at least one further inclined surface at a position spaced from the inclined surface along the nozzle.

  It is desirable that a further inclined surface be provided on the second shoulder on the nozzle. Again, the shoulder can be formed at the bridging portion on the nozzle. In one arrangement, the shoulder is positioned so that it lies within the housing formed by the cap body when the cap is in a fitted position on the nozzle (components are engaged). Additional ramps are arranged to cooperate with the above ramps so that they work together and provide separation forces at various locations between the cap and nozzle, usually in the same direction, at the same time (Especially positioned and shaped). In general, the second inclined surface can be disposed on the shoulder disposed as described above. The second inclined surface may not be in the ridge structure as described above. In general, the further cooperating part of the cap (for cooperating with the further inclined surface) may be the inner shoulder. The inner shoulder can be provided by reducing the inner diameter of the housing or on one or more portions arranged to project radially inward. An internal rim or collar can be provided on which a shoulder is provided. The rim or collar may be continuous or discontinuous as desired.

  It is further desirable to provide a greater separation force between the cap and nozzle with relative rotation. This can be achieved by providing at least one additional external ramp on the nozzle body. It is desirable to provide at least one additional ramp to cooperate with a longitudinal internal (positioning or guide) rib that extends along the cap body interior, as described in more detail below. In particular, note that more than one ramp may be provided on the same shoulder on the nozzle. In particular, it may be desirable to provide at least one inclined surface that cooperates with the internal protrusion and another inclined surface that cooperates with the rib.

  In the case where a separate inclined surface is provided at a predetermined position on the nozzle, it is desirable that the inclined surfaces are arranged at intervals. For example, one inclined surface can be provided in contact with the nozzle body, while the second inclined surface is spaced therefrom (outward in the radial direction). In one arrangement in which two inclined surfaces are provided on the bridging portion, it is desirable to provide one inclined surface at the junction between the bridging portion and the portion of the nozzle having a smaller diameter. The other inclined surface can be provided at the junction between the bridging portion and the portion of the nozzle having a larger diameter.

  In general, it is desirable that the separating force be evenly distributed around the nozzle. This can be achieved by providing at least two inclined surfaces around the nozzle. In general, the inclined surfaces can be provided to be diametrically opposed (eg, centered 180 ° apart). In general, this provides a balanced transmission of separation force between the cap and the nozzle. For example, the separating force can be uniformly transmitted to the opposing side surfaces of the cap.

  In particular, the inclined surfaces to be provided are desirably arranged in pairs. A first pair of facing inclined surfaces can be provided to provide a tilting effect in the opposite direction of rotation. Furthermore, the inclined surfaces on the opposing side surfaces of the nozzle can be provided such that the inclined surfaces on the opposing side surfaces are paired together and each provides a separating action on the opposing side surfaces of the cap.

  One particularly desirable arrangement is to provide four inclined surfaces. There will be two pairs of facing inclined surfaces. A pair of facing inclined surfaces are diametrically opposed to the other. Generally, they are 180 so that the tilting action experienced by the cap is substantially the same in the opposite direction of rotation of the cap and is transmitted substantially uniformly to the cap at the diametrically opposed sides. ° Centered away.

  Those skilled in the art will recognize that the ramps described above can be provided at any desired location on the nozzle and can be provided so that cooperating parts provided on the exterior or interior of the cap can act thereon. Will be done. In particular, if there are two or more shoulder portions on the nozzle body, an inclined surface can be provided on any selected one or more shoulder portions. Furthermore, the number of inclined surfaces to be provided can be adjusted as desired. The inclined surface can also be provided at any position on the nozzle body, for example, by forming the inclined surface directly on the nozzle body as desired. In particular, the inclined surface can be provided at a position spaced from the shoulder on the nozzle body. In general, it is desirable to provide a ramp / cooperating part arrangement where the achieved lifting effect is close to any possible attachment point.

  Suitably, there are at least eight inclined surfaces and at least two longitudinally spaced positions so that there are at least four pairs of oppositely inclined surfaces. Again, there are two pairs of facing inclined surfaces at each longitudinal position. At each longitudinal position, a pair of facing inclined surfaces are diametrically opposed to the other. In general, for each diametrically opposed pair, the tilting effect experienced by the cap is substantially the same in the opposite direction of rotation of the cap and is transmitted substantially uniformly to the cap at the diametrically opposed sides. To be centered 180 ° apart. The eight inclined surfaces are generally centered around an axis that extends parallel to the longitudinal axis of the nozzle. For example, the four inclined surfaces can be centered around each of two axes that run parallel to the longitudinal axis of the nozzle.

  In one particular structure, there are at least twelve inclined surfaces in at least two longitudinally spaced positions, such that there are at least six pairs of oppositely inclined inclined surfaces. Again, there may be two or four pairs (for example, on the same shoulder) of facing inclined surfaces at each longitudinal position. At each longitudinal position, a pair (or two pairs) of facing inclined surfaces are diametrically opposed to the other pair (or other two pairs). In general, for each diametrically opposed pair, the tilting effect experienced by the cap is substantially the same in the opposite direction of rotation of the cap and is transmitted substantially uniformly to the cap at the diametrically opposed sides. To be centered 180 ° apart. If eight inclined surfaces are provided at approximately the same location, they can be spaced apart from each other, measured along the lateral axis of the nozzle. The 12 inclined surfaces are generally centered around an axis that extends parallel to the longitudinal axis of the nozzle. For example, the two inclined surfaces can be centered around each of six axes that run parallel to the longitudinal axis of the nozzle.

  As described above, a stop can be attached to one of the inclined surfaces as desired in at least one of the inclined surfaces.

  It is desirable that the dispensing end of the nozzle can be fitted with a drain.

  The present invention also relates to a container for containing a removable product having the nozzle of the present invention formed integrally therewith. The invention further relates to an assembly comprising a container for containing a removable product having a nozzle of the invention attached thereto.

The present invention also relates to a cap of the type configured to fit over and interengage with the nozzle described above. In particular, according to the present invention, the cap is fitted on the dispensing nozzle,
(I) a first closed end;
(Ii) a housing that houses an elongated nozzle body and defines a second open end;
(Iii) an engagement structure on the cap for interengaging with a cooperating engagement structure on the nozzle to hold the cap in a position to fit over the nozzle;
(Iv) a mouth around the open end;
Providing a sufficient relative separation force between the cap and the nozzle body, when fitted onto the nozzle to separate the engagement structure on the cap and the nozzle from the interengagement position; There is provided a cap comprising at least one cooperating portion on the cap arranged to act on the inclined surface of the nozzle.

  In particular, it is desirable for the protrusions of the at least one cooperating part to be shaped to mate with the inclined surface. In particular, the at least one cooperating part is preferably shaped to mesh with the contour of the ramp (preferably the contour of both ramps, if present) in an overlapping arrangement. When relative rotation occurs, the cooperating part rides on the inclined surface. In particular, it is desirable for at least one cooperating part to have a convex shape. With such a shape, as described above, a sufficient relative separation force can be achieved with a small relative rotation angle. In general, the rising or tilting action is experienced by moving in either of two opposite directions. However, as described above, additional or alternative stops may be provided, which will prevent movement along the ramp in at least one of the two opposite directions. The at least one inclined surface can be provided in the form of one or more inclined surfaces on the nozzle body.

  Generally, the ramp / cooperating surface provides a separation distance of at least about 0.5 mm from the interengaged position to the maximum separation distance by the action of the cooperating portion on the ramp. In general, regardless of the general orientation of the cap and / or nozzle, this can be considered as an elevated distance. More particularly, it is desirable to achieve a separation distance of at least about 0.75 mm. It is desirable to achieve a separation distance of at least about 1 mm with relative rotation. As described above, separation can occur by disengaging the interengaging structure by moving one over the other in a snap-off arrangement. In another arrangement, the separation occurs by rotating one interengaging structure out of the other from the bottom.

  In one embodiment, at least one cooperating part is in the form of a protrusion. In general, the movement path of the cooperating part on the cap is in the circumferential direction around the nozzle.

  In one arrangement, two opposing cooperating parts are provided on the cap. In one arrangement, the cap is provided with an internal interengaging structure for interengaging with a structure disposed on the outer surface of the nozzle.

  In one arrangement, a further cooperating part is provided on the cap for cooperating with a further inclined surface on the nozzle. In general, the further cooperating part of the cap (cooperating with the further inclined surface) may be the inner shoulder. The inner shoulder can be provided by reducing the inner diameter of the housing or on one or more portions arranged to project radially inward. An internal rim or collar can be provided on which a shoulder is provided. The rim or collar may be continuous or discontinuous as desired. Again, the further cooperating part (and the ramp) is shaped to provide a separating force with the relative rotation of the cap and nozzle. In general, all of the separating forces cooperate and are arranged to provide the separating force simultaneously with other mating ramps / cooperating portions provided.

  Desirably, at least one longitudinal internal rib extends from the closed end toward the open end along the cap body interior. Desirably, at least two ribs are provided in the cap body at intervals. More particularly, it is desirable to provide at least three such ribs. Generally, the ribs are equally spaced within the cap body.

  It is also desirable to provide the cap with a pin in the housing that is attached to the cap at one end and has a free end that projects toward the open end of the cap. The pin is typically arranged to pierce into the conduit from the dispensing end of the nozzle. The pin desirably maintains the conduit free from obstruction, particularly the dispensing end of the conduit. The ribs are generally arranged as guide ribs that extend along the nozzle and are configured to guide the pins into the conduit as the cap fits over the nozzle.

  The pin is preferably formed integrally with the cap.

  In general, the separation force is also sufficient to overcome the adhesion between the pin and the nozzle. Depending on the length of the pin utilized, the separation achieved by the action of the cooperating part on the ramp may be sufficient to remove the pin from the nozzle. In other words, the vertical stroke may be greater than the penetration depth of the pin in the nozzle.

  In particular, note that more than one ramp may be provided on the same shoulder on the nozzle. In particular, it may be desirable to provide one inclined surface that cooperates with the internal protrusion and another inclined surface that cooperates with the rib.

  Thus, in summary, the present invention provides a nozzle, cap, and assembly thereof that provide a mechanism that can be easily opened. All components can be made from plastic material. One skilled in the art can select materials as needed for compatibility with the product to be removed, for example. In particular, the component is desirably made from a curable product compatible product, such as an adhesive compatible material. In one arrangement, the material selected is cyanoacrylate adhesive compatible. The container of the present invention may be relatively small, such as containing about 3 grams or more of product, such as containing 20 to 50 grams of product, or containing 200 to 500 grams or more of product, etc. May be much larger size. The aesthetic profile is such that it provides the consumer with visual assistance regarding the (re) installation of the cap onto the nozzle.

  This is particularly easy for consumers to use with a snap-on mounting / twisting arrangement. The phenomenon of the cap spreading due to excessive removal forces is improved by the design of the present invention.

  It should be noted that for convenience, different drawings are illustrated at different scales. However, it will be appreciated that the nozzle and cap are sized to interengage in the assembly arrangement, regardless of the scale used in any particular drawing.

  Reference is now made to the accompanying drawings. In particular, various embodiments of various components of the present invention will be described in some detail using FIGS.

  1 to 5 show a dispensing nozzle 1 according to the present invention. The dispensing nozzle 1 has an elongated nozzle body 2. The nozzle body has a base portion 3 in the form of an annular skirt 4. The dispensing nozzle has a dispensing end 5 from which the product is removed. An internal conduit 6 is provided in the nozzle body 2 to deliver the product from the base portion 3 to the dispensing end 5. The conduit 6 exits the dispensing nozzle at its outlet end 5 at the outlet port 7. The nozzle 1 is also formed with two opposing engagement structures in the form of ribs 8a, 8b arranged sideways. The circumferentially extending ribs 8a, 8b disposed on opposite (diametrically) opposite sides of the nozzle body 2 are mutually connected with a cooperating engagement structure on the cap, which will be further described below. It is for engaging. The ribs 8 a and 8 b are for holding the cap at a position where the rib 8 a and 8 b are fitted onto the nozzle 1.

  The nozzle is also provided with several external inclined surfaces. The inclined surface provides a sufficient relative separating force between the cap and the nozzle body so that the cooperating portions on the cap can separate the engagement structure of the cap and nozzle from the interengagement position. It is provided so that it can act on an inclined surface. The separating force is achieved by the relative rotation of the cap and nozzle. In the embodiment of FIGS. 1-5, each provided inclined surface has two opposing inclined surfaces, which may be referred to as double inclined surfaces.

  In the illustrated embodiment, six inclined surfaces having twelve inclined surfaces are provided. The inclined surfaces are arranged in opposing pairs (diameter direction). 1 to 5, each provided inclined surface is a double inclined surface.

  In particular, the first shoulder portion 40 defined in the nozzle body is provided with a first set of inclined surfaces 9a, 9b. A second set of inclined surfaces 10a, 10b is provided on the second shoulder portion 41 defined in the nozzle body. The same shoulder portion 41 is provided with a further set of opposing inclined surfaces 11a, 11b. Each inclined surface comprises two opposing inclined surfaces, as further described below.

  As can be seen (best seen from FIG. 2), outer shoulders 40, 41 are defined on first and second bridging portions 20, 21 respectively defined in the nozzle body. A third bridging portion 22 is also provided. Each bridging portion is formed between portions of the nozzle having different diameters. In particular, as can be seen from the figure, four parts of the nozzle are provided, each having a different diameter. The nozzle parts in question are referred to as 30, 31, 32 and 33, respectively, and reference numeral 30 is assigned to the largest diameter nozzle part, while reference numeral 33 is assigned to the smallest diameter nozzle part. The largest diameter nozzle portion is typically arranged and configured to form an annular skirt 4. The smallest diameter nozzle portion 33 is sized to receive and hold a dispensing drain that can be fitted into the nozzle as desired. As described further below, when the cap is fitted over the nozzle, it generally houses the nozzle portions 31-33 within the cap housing, while the portion 30 remains outside the cap. As best seen in FIG. 5, the decrease in nozzle diameter substantially coincides with the decrease in the diameter of conduit 6 on the nozzle.

  In the illustrated embodiment, the bridging portions 20 and 21 are each provided with a shoulder portion referred to as 40 and 41, respectively. As can be seen, the shoulders 40, 41 each extend circumferentially around at least a portion of the nozzle body 2. In general, the orientation of the shoulder portions 40, 41 is substantially transverse to the longitudinal axis of the nozzle body 2. The inclined surfaces 9a, 9b are formed on the shoulder portion 40, while the inclined surfaces 10a, 10b and 11a, 11b are formed on the shoulder portion 41.

  As best seen in FIGS. 1 and 2, the inclined surfaces each have a first lower portion and a second upper portion. In particular, the inclined surfaces 9a and 9b have a dish-like shape formed in the shoulder 40 in a groove shape.

  The inclined surfaces 9a, 9b are formed by a generally arcuate surface defined within the shoulder 40. The inclined surface typically has a central subpoint (denoted at the lowest groove-like point) indicated by reference numeral 50. Next to the subpoint 50 there are two opposing inclined inclined surfaces 51 which are in contact around the point 50. This gives a double inclined profile to each of the inclined surfaces 9a, 9b. The inclined surface 51 is inclined with respect to the rotational movement direction of the cap. Moving from point 50 along an inclined surface (along any of the inclined surfaces) provides an ascending action as movement from the lower point to the upper point occurs. This raising action causes a separating force between the nozzle 1 and the cap, as will be described in more detail below. The inclined surface 51 can be considered symmetrical in shape. From the point of the arcuate shape of the inclined surface 51, they can be considered to be curved around the horizontal axis of the nozzle body. The inclined surface has a generally concave shape. Due to the shape of the inclined surface, a rising or tilting action is experienced by moving in either of two opposite directions around the nozzle body. These opposite directions can be considered as clockwise or counterclockwise about the longitudinal axis of the nozzle body. The nozzle portion defined by the inclined rim or inclined surface 51 extends and contacts at the apex 53. Two vertices 53 are formed at a position where the inclined surface contacts.

  Although shown in FIGS. 1-5, the inclined surfaces 9a, 9b are provided in the ridge portion of the shoulder 40, perhaps as best seen in FIGS. In the illustrated embodiment, the ridge portion is formed as a raised lip or wall portion 60 (which extends around the wall of the second nozzle portion 31) arranged in an annular shape. In particular, the wall portion 60 is spaced from the nozzle portion 31. An annular seat 61 is defined between the wall portion 60 and the nozzle portion 31. The annular seat portion 61 is arranged to receive a part of the cap by a method described later.

  It will be appreciated that the inclined surfaces 9a, 9b provide a strong visual reference for accurate nozzle and cap alignment, as will be described below. In addition, a marker is provided on the outer surface of the nozzle that provides an additional visual reference for accurate alignment of the cap and nozzle. In this embodiment, the marker is on a prominent surface, which can be a raised surface 62 of the nozzle body, as shown. The prominent surface can also be a concave surface relative to the nozzle body. As can be seen from FIG. 1, the raised surface 62 has the shape of an arrow, and the tip of the arrow points to the center of the inclined surface 9b. A second (opposing) arrow pointing to the inclined surface 9a is also provided.

  The nozzle body 30 is also provided with a series of inclined gripping ribs 63 that facilitate gripping the nozzle 1 by hand.

  Shoulder 21 is positioned so as to be located within the housing formed by the cap body when the cap is in a position fitted over the nozzle (components are engaged). The (additional) inclined surfaces 10a, 10b are arranged to cooperate with the inclined surfaces 9a, 9b in a complementary manner by acting together with other sets of inclined surfaces to remove the cap. . In particular, each individual ramp is positioned and shaped to work together and provide separation forces at various locations between the cap and nozzle, approximately simultaneously and in the same direction. Each of the pair of opposed inclined surfaces is a mirror image of the other of the pair, and the inclined surfaces are arranged at positions opposed to each other in the diametrical direction.

  Inclined surfaces 10a and 10b having no ridge structure as described above with respect to the inclined surfaces 9a and 9b are provided. The inclined surfaces 10a, 10b are provided so as to work with further cooperating parts of the cap which are generally provided at an internal position of the cap. It can be seen that the inclined surfaces 10 a, 10 b are defined by the contour of the shoulder 41.

  Like the inclined surfaces 9a, 9b, the inclined surfaces 10a, 10b are double inclined surfaces formed by opposing inclined surfaces that are generally arcuate surfaces. An arcuate surface of the inclined surfaces 10a, 10b is defined in the shoulder 41. The inclined surface typically has a central subpoint indicated by reference numeral 55 in FIGS. Next to the lower point 55 there are two opposing inclined inclined surfaces 56. Moving along any of the inclined surfaces 56 inclined from the point 55 provides a lifting action because the movement from the lower point to the upper point occurs. This raising action causes a separating force between the nozzle 1 and the cap, as will be described in more detail below. The inclined surfaces 10a, 10b can be considered symmetrical in shape due to the arrangement of arcuate surfaces that contact around the point 55. In view of the arcuate shape of the inclined surfaces, they can be considered to be curved around the horizontal axis of the nozzle body. The inclined surface has a generally concave shape. As best seen in FIGS. 1 and 2, the inclined surfaces 10a, 10b are generally aligned with the inclined surfaces 9a, 9b. The inclined surfaces 10a and 10b are generally the same shape as the inclined surfaces 9a and 9b, although the dimensions are smaller and the dimensions are reduced on the main body portion 31 having a smaller diameter than the main body portion 30 provided with the inclined surfaces 9a and 9b. Similarly to the inclined surfaces 9a and 9b, the inclined surfaces 10a and 10b are provided at the position of the (shoulder) of the nozzle body extending along the outer wall of the nozzle body. In general, this is arranged on an axis parallel to the longitudinal axis of the nozzle.

  Furthermore, inclined surfaces 11a and 11b, which are both surfaces, are also provided on the nozzle body 2, particularly on the shoulder 41. Inclined surfaces 11a, 11b are provided to cooperate with longitudinal internal ribs extending along the cap body interior as will be described in more detail below. In particular, it should be noted that two sets of inclined surfaces 10a, 10b, 11a, 11b are provided on the same shoulder portion 41 on the nozzle. In particular, it may be desirable to provide one inclined surface that cooperates with the internal protrusion and another inclined surface that cooperates with the rib. The separate inclined surfaces 10a, 10b, 11a, 11b are spaced apart (in the radial direction). In the illustrated embodiment, inclined surfaces 11 a and 11 b are provided at the junction between the bridging portion 41 and the portion of the nozzle having a smaller diameter, that is, the nozzle portion 32. The inclined surfaces 11a and 11b are provided at the junction between the bridging portion and the nozzle portion having a larger diameter, that is, the nozzle portion 31.

  The inclined surfaces 11a, 11b have a central lower point 70 and two curved inclined surfaces 71 leading upward therefrom. The inclined surface is generally an arcuate shape similar to other inclined surfaces as described above. The inclined surfaces 11a and 11b are provided to cooperate with the internal rib of the cap body. The inner rib will be described in more detail below.

  Around the lower surface of the nozzle 1 (see FIGS. 4B and 5), around the mouth 80 of the annular skirt 4, there is a series of ratchet teeth 81 that engage the corresponding teeth of the container to which the nozzle is attached. The interengagement of the teeth holds the nozzle against subsequent relative rotation of the nozzle and the container. A spiral thread 82 (FIG. 5) is provided on the lower surface of the skirt 4. The thread can be attached to the container with a thread. Alternatively, the nozzle can be integrally formed with the container as desired. Also provided in the skirt portion 4 is an annular mating skirt 83 that is contoured to mate with the mouth of the container to which the nozzle 1 can be attached. In particular, the mating skirt 83 has a sharp leading edge 84 that is configured to be able to penetrate the membrane on the container to which it is attached. When the nozzle is fitted into the container, the membrane is broken.

  FIGS. 6-10 show various views of the cap 100 of the present invention for use with the nozzles of FIGS. The cap is configured to fit on the nozzle 1 of the present invention. The fitting arrangement will be described in more detail below.

  The cap 100 has a first closed end, which in this embodiment is the upper end 101. The cap 100 has a cap body 102 that is arranged to form a housing for housing the elongated nozzle 1. At the second end 103, the cap is opened and the cap forms a housing 103a (best seen from FIG. 10). The cap 100 has a mouth 104 around its open end. The cap 100 has a lower portion 105 with a relatively large diameter. The cap further has an upper portion 107 with a small diameter compared to the portion 105. The upper and lower portions are joined by a bridging portion 106. Over the bridging portion 106, local narrowing of the cap diameter occurs. The upper portion 107 decreases in diameter toward the upper end 101 and tapers in width. The upper portion 107 generally has a frustoconical shape. A rib 108 is provided on the upper portion 107 of the cap. Further ribs 109 are provided in the lower part 105 of the cap. Both sets of ribs can facilitate gripping the cap by hand.

  As will be described in more detail below, the cap 100 is provided with several cooperating parts.

  In particular, two opposing cooperating parts in the form of protrusions are provided on the cap body 102 at its open end 103. The cooperating portion takes the form of a short rib or lip 110 that extends circumferentially a short distance around the cap 100. The rib protrudes radially outward from the cap body 102. As shown, the rib 110 preferably protrudes radially outward beyond the mouth 104 of the cap 100 (and beyond the inclined surfaces 9a and 9b as will be described later).

  As best seen in FIGS. 6, 8 and 9B, the rib 110 has a lower surface shaped to match the contour of the inclined surfaces 9a, 9b of the nozzle 1. The rib 110 is arranged and configured to engage with the cap 100 when the cap 100 is arranged on the nozzle 1. As shown in FIG. 8, the inclined engaging surface (in this embodiment, the lower surface of the rib) has a curved contour. In particular, the rib is generally convex in shape. The rib 110 has a central portion 112 disposed at a raised position of the mouth 104 (in the longitudinal direction). In the orientation of FIG. 8, the central portion 112 is placed in a position where it is below the mouth 104. The central portion 112 is joined continuously with the two curved surfaces 111. The curved surface typically ends at the side edge 113 of the rib. The rib has a leading edge called 114. Each cooperating part (rib) can be considered to also comprise an inclined surface. In particular, the two surfaces 112 can be considered as inclined surfaces that engage the inclined surface 51 of the nozzle 1. Again, for the reasons described above, when the cap and nozzle are subjected to relative rotation in either of the opposite directions (around their longitudinal axis), the cooperating part and the inclined surface cooperating therewith are Each cooperating part is provided with two facing inclined surfaces so that it can act to separate the cap from the nozzle. It will be appreciated that having only one surface on the cooperating portion that acts on one surface of the inclined surface is sufficient to effect separation. Opposing cooperating parts (diametrically) are provided for the purpose of providing separation forces on the opposing sides of the cap / nozzle.

  Further, an alignment index in the shape of an arrow 120 is provided on the outer wall of the cap 100. The arrow is formed by the raised surface of portion 107 and the recessed surface of portion 105. The arrow (similar to the arrow on the nozzle) has a different appearance (as shown in FIGS. 6 and 8) from the rest of the components to make it more clear to the eye. Can be provided. Indeed, as best seen in FIG. 9a, two opposing arrows are provided.

  As best seen in FIGS. 9B and 10, longitudinal internal ribs are provided in the housing 103 a of the cap body 102. There are two types of ribs, the first type of ribs extending along the cap body from the closed end 101 of the cap to a substantially intermediate position. In this embodiment, there are four such ribs, each called 130. The ribs 130 are generally shorter than the other two ribs extending from the closed end 101 of the cap to a position closer to the mouth 104 at the open end of the cap body. These ribs are labeled 131 in the drawing. In general, each of the ribs 130 and 131 has a function of providing a guide surface for the inserted nozzle 1. In particular, the rib is shaped to match the (tangential) contour of the nozzle (in this embodiment it is tapered). In this way, the nozzle is guided through insertion into the center of the cap. An integrally formed pin 132 projects from the closed end 102 of the cap 100 into the housing. When the cap is in place, the pin 132 pierces the tip of the nozzle as described below.

  The closed end 101 of the cap 100 has an annular recess 135 around a pin 136 that indicates the injection molding point of the cap (see FIG. 10).

  Inside the cap 100 is an interengaging structure, which in this embodiment is a continuous annular ring or collar 140 on the rise of the inner wall of the nozzle. When the cap and nozzle are brought together in a proper manner, the structures 8a, 8b on the nozzle engage the collar 140 and the snap, thus holding the cap and nozzle together. When relative rotation of the cap and nozzle occurs, the ramp / cooperating portion arrangement snaps the snap fit mechanism. This is done by providing a sufficient separation force between the cap and the nozzle to force separation. This operates to push one part of the snap-fit mechanism past the other part. This breaks the hold between the parts.

  Furthermore, further cooperating means are provided at a position inside the cap 100. In particular, at one end of the bridging portion 106 is a cap portion 107 having a reduced diameter. An inner shoulder 150 is formed inside the junction between the bridging portion 106 and the cap portion 107. The shoulder 150 extends around the entire inner wall of the cap 100. The shoulder 150 is contoured to engage the inclined surfaces 10a, 10b and to act similarly to the engagement of the inclined surfaces 9a, 9b and the cooperating portion 110. Shoulder 150 is typically provided with two cooperating parts. In particular, on the opposite side of the cap, there are two convex surfaces 151 that are generally circumferentially aligned with the cooperating portion 110 so that they coincide with the contours of the inclined surfaces 10a, 10b of the nozzle 1. Formed by the underside of the shaped shoulder 150. As shown in FIG. 10, the inclined surface engaging surface (the lower surface in this embodiment) of the shoulder has a curved contour. Each cooperating portion has a central portion 152 disposed in a first position closer to the mouth 104 of the cap 100. The central portion 152 is joined continuously with two curved surfaces 153 that are inclined in opposite directions. The curved surface 153 generally extends upward from the center point 152 toward the closed end of the nozzle (in the orientation of FIG. 10). In particular, the provision of two cooperating parts, each having two sets of inclined surfaces as described above, can distribute the separating force evenly around the nozzle and cap body, It is also possible to separate regardless of the general direction of rotation. Again, these structures cooperate with other provided structures to provide a combined separating force.

  Each longer rib 131 serves as a cooperating part that works with the inclined surfaces 11a and 11b. In particular, the lower (free) end 155 of the rib 131 is arranged to act on the inclined surfaces 11a, 11b during relative rotation of the cap and the nozzle and provide a separating force. Since the rib 131 and the inclined surfaces 11a, 11b are close to the nozzle, the provided lifting force is very useful for removing the cap from the nozzle. This is because a force is provided in the longitudinal direction in the vicinity of the nozzle where the cap can adhere to the nozzle.

  FIG. 11 shows a perspective view of a cap 100 that is fitted onto the nozzle 1 and engaged in a snap manner. As can be seen, the arrows 120 and 62 are aligned. Furthermore, a cooperating part (rib) 110 projects beyond the outer wall of the nozzle (and the inclined surfaces 9a, 9b). In addition to the arrows, it is also clear that the contoured shape of the cap and nozzle provides a visual indication of the direction in which the cap and nozzle are engaged.

  FIG. 12 is a cross-sectional view of an arrangement in which the cap 100 and the nozzle 1 are assembled. In this arrangement, each cooperating part of the cap is fitted into the central lower part of the inclined surface of the nozzle. FIG. 12 shows the fitting position well.

  In the assembled position of FIG. 12, a pin 132 on the nozzle is fitted into the outlet port 7 of the conduit 6. A part of the nozzle, i.e. the nozzle part 30, is outside the cap. The remaining part of the nozzle (parts 31-33) is inside the cap. In particular, the shoulder 41 (with its associated inclined surfaces 10a, 10b, 11a, 11b) is located inside the nozzle. The cap 100, and in particular its mouth 104, is mounted on the annular seat 61 of the nozzle between the wall 60 and the nozzle. In FIG. 12, it can be seen that the mouth 104 of the cap 100 has an inclined surface 160 that mates with the inner surface of the wall 60.

  Thus, the annular engagement collar 140 snapped over the engagement structures 8a, 8b on the nozzle holds the cap in place. The relative rotation of the cap 100 and the nozzle 1 causes all cooperating parts to act on the inclined surface, which in turn is sufficient to push the collar 140 back over the engagement structures 8a, 8b on the nozzle. is there.

  FIGS. 13-16 show an alternative embodiment of the nozzle of the present invention that is very similar to the nozzle structure of FIGS. In this regard, for the sake of brevity, only the main differences in structure will be described. Thus, it is recognized that the nozzle functions in the same way.

  The nozzle 201 has an inclined surface 209 b (opposing inclined surfaces are not shown), which has two inclined surfaces 251 around the central lower point 250. In this embodiment, a stop 260 is provided on the nozzle on one (left side) of the slope. The stop is formed by a nozzle step along the inclined surface 251 of the inclined surface. As best seen from the assembly configuration shown in FIG. 21, the cap 300 (particularly the side wall 400 of the rib 310) abuts against the stop 260. The opposite side of the nozzle corresponds to the side shown in the structure as best seen from the plan view of FIG.

  The interengaging structure 208 b is formed by a substantially lateral portion 280 and an inclined portion 281. The shape of the structure 208b is such that the corresponding interengaging structure on the cap can be fitted over the structure 208b or rotated so as to be positioned thereunder. By pushing or twisting, the cap and the nozzle finally have the assembled configuration shown in FIG. The structure 208b follows the general contour of the ramp 251 so that the corresponding interengaging structure on the cap follows the guide provided by the structure 208b when the cap enters the engaged position.

  The embodiment of FIG. 13 is further provided with a generally cylindrical nozzle portion 282. Cylindrical portion 282 is provided to cooperate with internal ribs in the cap to better guide the cap onto the nozzle.

  In addition, a dispensing portion 283 having a reduced diameter is provided that allows for more accurate removal by the user, such as dispensing an adhesive product. FIG. 16 shows a cross-sectional view of the nozzle 201 described in more detail below in connection with FIG.

  A corresponding cap 330 is illustrated in FIGS. It will be appreciated that the structure is very similar to that of FIGS. 6-12 and functions similarly. As best seen in FIG. 20, the main difference is the interior of the cap 300.

  In the illustrated embodiment, it will be appreciated that the pin 32 is slightly longer than that of the previous embodiment and is adapted in view of changes in the structure of the dispensing end 283 of the nozzle. In addition, two different types of internal ribs are provided: 330 numbered and 331 numbered. There are two longer ribs 331 designed to assist the tilting action in a manner similar to the ribs 131 described above. The rib 331 has a portion 340 corresponding to that of the rib 330 and transitions at a step 32 to a rib portion 341 whose height is reduced to accommodate the nozzle. When counting the portion 340 or rib 331, there are six ribs in the form of ribs 330. These six ribs act to center the cap on the nozzle and provide stability between the cap and the nozzle. An internal inclined rim 350 is also arranged to operate with a tilting action.

  The interengaging structure 360 is integrally formed within the cap 300. This structure has a substantially transverse rib portion 361 and an inclined portion 362 that is oblique to it (inclined downward at a small angle). The structure 360 is arranged to cooperate with the structure 208b on the nozzle 201. As can be appreciated in particular from FIGS. 18 and 21, each lip 310 is provided with a stop 400 that abuts against a stop 260 on the cap.

  The assembly configuration is illustrated in FIG. In this view, it can be seen that the structure 360 (opposing structure 364) on the cap 300 engages the structure 208a and the opposing structure 208b and is held in place beneath it. The cap can be disengaged from the nozzle by snapping and snapping or twisting. It can also be applied by the same mechanism.

  It will be appreciated that for clarity, certain features of the invention described in the context of separate embodiments may be combined in one embodiment. Conversely, for the sake of brevity, the various features of the invention described in the context of one embodiment may be provided separately or in any suitable subcombination.

  The terms “comprising” and “having / including” are used herein to specify the presence of the stated feature, integer, step or component as used in connection with the present invention; It does not exclude the presence or addition of one or more other features, integers, steps, components or groups thereof.

The perspective view of the nozzle of the present invention is shown. The side view from the 1st side surface of the nozzle of FIG. 1 is shown. The side view from the 2nd side is shown. Its plan view is shown (in the same direction as FIG. 3). Its bottom view is shown (in the same direction as FIG. 3). FIG. 4B shows a cross-sectional view along the line AA shown in FIG. 4A. The perspective view of the cap of the present invention is shown. The side view from the 1st side surface of the cap of FIG. 6 is shown. The side view from the 2nd side is shown. Its plan view is shown (in the same direction as FIG. 7). Its bottom view is shown (in the same direction as FIG. 7). Sectional drawing along the AA shown in FIG. 9A is shown. FIG. 7 shows a perspective view of an assembly comprising the nozzle of FIG. 1 with the cap of FIG. 6 fitted over and interengaging with it. FIG. 12 shows a cross-sectional view of the assembly of FIG. FIG. 6 shows a perspective view of an alternative embodiment of the nozzle of the present invention. FIG. 14 shows a side view of the nozzle of FIG. 13. FIG. 14 is a plan view of the nozzle of FIG. 13. FIG. 14 shows a cross-sectional view of the nozzle of FIG. 13. FIG. 6 shows a perspective view of an alternative embodiment of the cap of the present invention. FIG. 18 shows a side view of the cap of FIG. 17. FIG. 18 shows a plan view of the cap of FIG. 17. 18 shows a cross-sectional view of the cap of FIG. FIG. 18 shows a side view of the cap of FIG. 17 on the nozzle of FIG. FIG. 22 shows a cross-sectional view of the assembly of FIG.

Claims (52)

(I) an elongated nozzle body having a base portion and a dispensing end;
(Ii) an internal conduit in the nozzle body for delivering product from the base portion to the dispensing end;
(Iii) an engagement structure on the nozzle for interengaging with a cooperating engagement structure on the cap to hold the cap in a position to fit over the nozzle;
(Iv) is located on the nozzle body, receives an action from a cooperating part on the cap, provides a sufficient relative separating force between the cap and the nozzle body, A dispensing nozzle comprising a combined structure and an external inclined surface capable of separating the nozzle from the mutual engagement position.   The nozzle according to claim 1, wherein the separation force between the cooperating surface and the external inclined surface is provided by the action of relative rotation of the cap and the nozzle in at least one direction.   The nozzle according to claim 1, wherein the inclined surface includes an inclined surface that is inclined with respect to a rotation direction of the cap.   A nozzle according to any of the preceding claims, wherein the separation force between the cooperating surface and the external inclined surface is provided by the action of relative rotation of the cap and the nozzle in two opposite directions.   The nozzle according to claim 4, wherein the inclined surface comprises two opposing inclined surfaces that are oblique to the direction of rotation of the cap.   6. A nozzle as claimed in any one of claims 2 to 5, wherein the relative rotation required to effect separation is less than about 90 [deg.].   7. A nozzle according to any one of claims 2 to 6, wherein the relative rotation required to effect separation is less than about 80 degrees.   A nozzle according to any one of claims 2 to 7, wherein the relative rotation required to effect separation is less than about 60 °.   The nozzle according to any one of claims 2 to 8, wherein the inclined surface is provided by an inclined surface on an outer shoulder defined on the nozzle body.   The nozzle of claim 9, wherein the outer shoulder is defined on a bridging portion on the nozzle that bridges two portions of the nozzle having different diameters.   11. A nozzle according to claim 9 or 10, wherein the shoulder provides a circumferentially disposed surface around at least a portion of the longitudinal axis of the nozzle body.   The nozzle of claim 11, wherein the orientation of the surface is substantially transverse to the longitudinal axis of the nozzle body.   The inclined surface comprises an inclined surface having a first portion and a second portion, the first portion and the second portion being desired when moved along the inclined surface from the first portion to the second portion. A nozzle according to any of the preceding claims, arranged to provide a lift.   A nozzle according to any preceding claim, wherein the inclined surface comprises two opposing inclined surfaces arranged to contact at the lower end thereof.   The nozzle according to any of the preceding claims, wherein the inclined surface is curved around a longitudinal axis of the nozzle so as to follow a path of movement of a cooperating part on the cap of the nozzle.   The nozzle according to claim 1, wherein the inclined surface is provided on a ridge portion arranged in a circumferential direction extending around the wall portion at a distance from the wall portion of the nozzle portion.   A nozzle according to any preceding claim, wherein the inclined surface is arranged to be clearly visible to the user in both the disengaged position and the interengaged position.   A nozzle according to any preceding claim, wherein the nozzle interengages with the cap in a push-fit manner.   The nozzle of claim 18, wherein the nozzle interengages with the cap in a snap-fit configuration.   20. A nozzle according to claim 18 or 19, wherein the nozzle additionally interengages with the cap in a twist-fit configuration.   The nozzle according to any one of the preceding claims, wherein the first and second inclined surfaces are provided at intervals in the longitudinal direction along the nozzle body.   The nozzle according to claim 21, wherein a snap-fit structure on the nozzle body is disposed on the nozzle body between the first inclined surface and the second inclined surface.   The nozzle according to any one of the preceding claims, wherein the first and second inclined surfaces are provided laterally spaced on the nozzle body.   The nozzle according to any one of claims 21 to 23, wherein the first and second inclined surfaces are provided on shoulders on the nozzle.   25. A nozzle according to any one of claims 21 to 24, wherein a further cooperating part of the cap is arranged to act against the second inclined surface.   A nozzle according to any preceding claim, comprising at least one further external inclined surface on the nozzle body capable of being acted on from longitudinal internal ribs extending along the cap body interior. A cap that fits over the dispensing nozzle,
(I) a first closed end;
(Ii) a housing that houses an elongated nozzle body and defines a second open end;
(Iii) an engagement structure on the cap for interengaging with a cooperating engagement structure on the nozzle to hold the cap in a position to fit over the nozzle;
(Iv) a mouth around the open end;
Providing a sufficient relative separation force between the cap and the nozzle body, when fitted onto the nozzle to separate the engagement structure on the cap and the nozzle from the interengagement position; A cap comprising at least one cooperating part on the cap arranged to act on the inclined surface of the nozzle.   28. A cap according to claim 27, wherein the protrusion of the at least one cooperating portion is shaped to mate with the inclined surface.   29. A cap according to claim 27 or 28, wherein the separation force between the cooperating surface and the external ramp is provided by the action of relative rotation of the cap and the nozzle in at least one direction.   30. A separation force between the cooperating surface and the external ramp is provided by the action of relative rotation of the cap and the nozzle in two opposite directions. cap.   31. A cap according to claim 29 or 30, wherein the relative rotation required to effect separation is less than about 90 [deg.].   32. A cap according to any one of claims 29 to 31, wherein the relative rotation required to effect separation is less than about 80 [deg.].   33. A cap according to any one of claims 29 to 32, wherein the relative rotation required to effect separation is less than about 60 [deg.].   34. A cap according to any one of claims 27 to 33, wherein the at least one cooperating part is convex.   35. A cap according to any one of claims 27 to 34, wherein the at least one cooperating part is in the form of a protrusion.   36. A cap according to any one of claims 27 to 35, wherein the path of movement of the cooperating part on the cap is a circumferential path around the nozzle.   37. A cap according to any one of claims 27 to 36, comprising two opposing cooperating parts provided on the cap.   38. A cap according to any one of claims 27 to 37, comprising an internal interengaging structure that interengages with a structure disposed on an outer surface of the nozzle.   39. A cap according to any one of claims 27 to 38, comprising a further cooperating part on the cap cooperating with a further inclined surface on the nozzle.   40. A cap according to claim 39, wherein a further cooperating part of the cap is provided on the inner shoulder.   41. A cap according to any one of claims 27 to 40, further comprising at least one longitudinal internal rib extending along the interior of the cap body from the closed end toward the open end.   42. Any of the claims 27-41, further comprising at least two longitudinal internal ribs spaced within the cap body and extending along the cap body interior from the closed end toward the open end. The cap according to claim 1.   43. A cap according to any one of claims 27 to 42, further comprising a pin in the housing attached to the cap at one end and having a free end protruding toward the open end of the cap.   44. A cap according to any one of claims 27 to 43, fitted on and interengaged with a nozzle according to any one of claims 1 to 26.   27. A nozzle according to any one of claims 1 to 26, wherein the cap according to any one of claims 27 to 44 is adapted to be fitted over and interengaged therewith.   45. An assembly comprising a cap according to claim 44 fitted over and engaging with a nozzle according to claim 45. A container having a nozzle according to any one of claims 1 to 26, integrally formed with itself,
A container in which the nozzle is arranged to deliver a product that can be removed from the container. 27. A container having a nozzle according to any one of claims 1 to 26 attached to itself,
A container in which the nozzle is arranged to deliver a product that can be removed from the container.   49. A container according to claim 47 or 48, further comprising a cap according to claim 44 which is fitted over and engages the nozzle.   50. A container according to any one of claims 47 to 49, comprising a curable product therein.   51. A container according to claim 50, wherein the curable product is an adhesive product.   52. The container of claim 51, wherein the adhesive is a cyanoacrylate adhesive.

Images